Balancing mechanism for revolving bodies



June w. BARTHoLoMEw f BALANCING MECHANISM FOR' REVOLVING BODIES Filed om.v z. 1920 g shuts-'shan ,1'

June 24. .1924.` l A 11,498,535 f BARTHOLOMEW yBAIJANGING MBCHANISM FOR REVOLVING 5013.185

' Filed oct. 2, 1920 2 shura-sheet a wim f librium, and thus adds to work to be overcome by the force` of the over-balance, and i Patented y.lune i 24, l 1924.

,'"uNlT-Enzs-TA v WILLIAM BVARTHOLOMEW. OF CHICAGO, ILLIN COMPANY. LTD.. 0F`CHICAGO.

MACHINERY YORK. 1

ILLINoIs.` A continuarono! BALANcrNG MECHANISM ronnEvoLvrNo Bonms.

Application led Uctober 2, 1920.l Serial 110.414,862. l

To all whom t may conce-wr.' l Be it knownthat I, W'ILLIAM BAnTHoLo- MEW, a citizen of the United States, residlng Vat Chicago, in the county of Cook and'` State eral deviation from the normal axis of revolution in the revolving body, for instance, a shaft orspindle, and is'based upon the operative principle of constantly resisting, ,by

an annular field of radially acting sluggishly movable resistance` the tendency of the revolving body to assume an orbitalpath as distinguished from revolution about an immovable axis; the sectors of resistance on 0pposite sides of the shaft being preferably reciprocal in theirv action in the sense that wheny displacement of a resistance :means takes place on one side of the shaft, the re- Y sistance means on the other side move toward the center. and vice versa; that is to say, follows inward in readiness-to begin its 0pposition to the outward leaning ofthe rotary ody even before the latter recovers equireduces the deviation from true rotationl This reciprocal action of the resistance units is best insured by establishing connection diametrically across the'elhand preferably by uniting all the sectors of the resistance field in an annulus 'of resistance, so that the revolving body will be drawn in on one sector as it pushes out on an opposite sector; and the resistance means is made double acting so that it moves sluggishly inward as well as outward and so increases the inlluence upon the revolving body. But the preferred connection between the units amounts to more than this, and is in the nature of an annular yoke connected to all `the resistance units` so that the displacing; and restoringl movements are not only imparted to l,them

successively but distributed between adjatheir movement by "4f-luid which escapes cent units and '.theiidiametrically opposite i units; lost motion connections -between theV yoke and each mit vin theV direction fper'- pendicular to the `radiusthereof reducing the movement lmpartedto each in" proportionf tothe departure of colncidence with the radius which defines lthe position ofthe `unit.` A

Preferably the resistance vfield is composed f j` of an `annular series of individual resistance umts, and these are preferably offan uneven number so that. the displacing ei'ectoffthe ors. AssIcNon ro amoxnonoui@ es the line of thrust from'vl 1 resistance unit` on one 'side will pbefdis-` tributed to atleast 'two resistance units on the other side. The resistance vunitsfpreferably employedconsistof pistons `or plun ers havmg connection `with therevolvin body and working in radially and opposed in the tworadialdirectionsgof disposed `cylmders, p

through constricted ports and renders'the pistons sluggishly responsive to radialpressure of the revolving body acting; onl the pistons; in otherwords, the resistance unit is in thenature of a double acting hydraulic` bul'er, so connected that itsA reaction upon the revolvingbody is iny a" direction radial to the latter. The means'for connectingup c anannular series of such l reslstance ,units f preferably consistsof a spideror frameiitseveral resistance units,V with" compensation for the lateral componentof their movement `features of the invention.

ting closely` upon the revolving'body tofbe v controlledand havnglarms connected to the f process of F'gure 2 is a horlzontalsectionfon the" Y line 2@ IF of Figure 1.;v Y f v 5: Figure v `3 is anaenlarged detail vieu?.` in

vertical radial Lsection of one ofthe connections between a resistance unit and the spider. y Figure 4 is a plan view of parts shown 1n Figure 3.1 v

Figure 5 is a sectionon the line 5*-5* of Fi ure 4; and

igure 6 is a detail view of a cylinder,

r'with its plunger in an extreme position.

the illustrative Referring more in detail t0 embodimentof vthe invention, 1 represents the spindle of a centrifugal extractor, mounted through thrust bearings -2v and radial bearings '3 in the `race cage 4 which is spherically stepped linthe ball saddle 5 so` that saidspindle, while free to rotate; is laterally unrestrained ly its support. 6 repre-y sents the bell shape ulley secured to the spindle 1 and which, w ile depending in poasition to receive a belt upon its crowned periphery, also serves as a housing to surround the bearin f Mounte upon the spindle 1 is the basket 7 within the curb 8.As1thus far described,

the parts may follow known constructionin centrifugal extractors.

Injorder to permit thebasket 7 to yield to an unsymmetrlcally' placed load within it extent the deviaand follow to the necessarfy t revo u `ion resu ttions .from its true axis o ant from centrifugalforce of the over 'bal- 4 ance,

A movement pelled under pressure developed by 'the of the plunger. A port-12 at each end of each cylinder adapts the cylindersv vto resist the pistons in either direction,rand as the pistons are connected on opposite vsides v of the spindle the resistance units are doubleacting.y In the form of the device selected for illustration, lthe 1 movement of the plungers `10 is-'radialto thespindle 1, and they are all connected with the spindle with-V out interfering with the rotation of the latter by a spider 13 andradial ball bearings 14, which spider has its arms constructed with slots 15, Figures 4 and 5, in whicharefitted blocks 16 that receive the stud pins 17 rising from the plungers 10. Blocks 16 fit snugly inthe vslots 15 in the direction which is radial.: tothe spindles, but have freedom of movement therein in a direction perpendicuf lar to the radius.V Spiders13 receive their vertical support on balls 18 confined in cups 19 of the cover plate 20s of the .annular reser'` voir 20 inwhich the cylinders 11 are located# The studl pins 17 playbackward and -forward in the slots 11 of the cylinders 11, in the direction radialto the spindle 1,'and the ineens relative lengths of the plungers and slots are such that anfabnormal thrust of the plunger in either direction will uncover slot 11 as suggested in Figure 6, and Aquickly admit flui suiclent to supply any vacuum that may not have beeny supplied by the port 12 during the movement of the piston. y

As shown in' Figure 2, an-uneven number of resistance units are referably employed (five being shown) so that each uniton one side of the shaft is opposed by a pair of units on the other side.v

lVith thebalancing .device as above described, the orbital path of the spindle, due to unsymmetrical loading, will succcessively force the resistance units radially outward onA the side toward which the spindle leans, and -draw the unit or units on the opposite side radially inward vat the same time, so that the spindle is constantly opposed by a slug'gishly yielding and non-resilient resistance; and in the specific embodiment shown, asl each unit moves outwardly two or more such 'resistance units onthe opposite side of the spindle are drawn inwardly and reset for-the next outward movement; and since the units have sluggishness of movement inward as well as out-ward, the inward movements add to the load imposed against the spindle. In order that the resistance may be regulated yat will,means such as stop cocks 21l maybe arranged to control the ports 12, and -`by such means or their equivalents the balancing effect may be regulated to a nicety.

Inasmuch as the centrifugal .force which throws lvthefspindle oif center -is necessarily .proportional to the rate of revolution, and

diminishes to zero with thegradual slowing down and stopping of the revolution, the Vforce which displaces the resistance units gradually decreases with the stoppingof the machine, moving each resistance unit less and lessL until at a time vwhen the basket comes to rest, the' spindle will always be found to yhave assumed a substantially vertical position and the resistance units will occupy their intermediate positions vas shown in Figure 1.

Any suitable means may be employed for keeping the cylinders supplied with lHuid, such foryinstance as the surrounding wall or flange 22'which provides a reservoir space 23 for eachcylinder. Y

I claim:

1. A device `for resisting ldeviations of a revolving body from its" axis of revolution. comprising an annular field of slu gishly ,yielding resistance sectors, means t rough another sector thereof.y

25A vdevice for resisting deviations ot a ...amigas h1 ingresistance `means t ough i' to `another sector thereof; said resistances 1 acting to oppose loadsfso transmitted as well as loads 'imposed directlv thereon. Y 1

3. A ,devicev for y resisting lateral play, of a revolving body .comprising an annular field v opposite sectors.

of sluggishly yielding resistance runits act ing toward as well as away fromthe axis of revolution, means through which movement of the revolving body from its axis of reyolution` is opposed by said resistance umts, and means through which `movement imparted by the-` 'revolving body vto theresistance units of theH respective sectors of the field is also transmitted to the resistanceunit's of 4. Adevice vfor resisting deviation in Arevolving bodies comprisin lan annular'field lof the spindle to renderv .themcoactinglin of slug 'shly displlaceab e resistance units, means t rough w ich departure of the re` volvingfbody from its axis of vrevolution is opposed by a resistance unit toward which it moves, and means through which each `re sistance unit displaced by the revolving body is` restored by displacementof a `subsequently-encountered resistance unit; said resistance units being non-resilient but double acting land opposing deviation by their movements of restoration as ments of displacement.

5. A devicetfor resisting deviations of a revolving body, from its axis of revolution,

well as movecomprising an annular field of slug yieldin non-resilient resistance, and means throng which it opposes movement of the revolving body from axis of revolution; the eld of resistance bein y composed l of radially disposed and radiay actin resistance units; and a yoke being provi ed for coupling said resistance units in annular series so that tlrru'st of deviation is distributed anonlg a plurality of units. revolving body from its axis of revolution, comprising `an annular field `of sluggishly yielding non-resilient resistance, and means through which it opposes movement 'of the revolvin -body from its axis of revolution' the fiel of resistance bein `composed of radially disposed and radial y actin resistance units; a yoke being provided or couplin said resistance units inannular seri so tat thrust of deviation is distributed lamong a plurality of units;'and saidyoke having lost-motionconnection with the units in directions perpendicular to the radii which 'define their positions.

device for resisting deviations of an z revolving body from its axis of revolution,

jmovement of the revolving body from its 4axis of revolution, and ,meansr f throughvwhich the loadreceiveddirec'tly Yby .one sector ofi the resistance is transmittedi dle,

s'islhly4 -nections for all the resistance units and each resistv.

110 connection Vin a direction perpendicular to device for resisting deviations of ay `zontal yiel Y non-resilient. resistance, an means throng the.iel d e f Aresistance Qcom rising an (annu-` larseriesofhydrauliebu ersljfy- J 8. A device nojresilient resistance, which it opposes movement; of, the

vbody from itsvaxis of yieldingly` resist movement of theffjs'ind awayfromits axis of revolutioman con-.

necting resistance unitsl on opposite., sides v their resistance to the spindle.'v

1 0. Inv a revolving machine,

which it opposesmoveinent of'jthe., revolvmg'body from itsjaxisof revolution v for resisting 'deviations'off'af f' revolving body from its axis of revolution, tgcom rising an annular fiieldfgof s'luggishly A an'd ineans 4 f revolution; f the fiel-` ,ffresistance comprising radiuy ydraulic buiers andan iinfnu l a"rjy I 1machinefhaving @spin-- dle, meansiorresisting lateraliplayofsaid comprising'a series einen-,resilient resistance units andan annular yoke-s`urf 85 .tions with'said .units `throughfvi'. ichqtheiyfr dle, .me ans;for resisting lateralfpla of said spindle comprising afse'ries of radiallyf disposed individual non-resilient resistance v units and 'connecti ns through jvfihich "said units yielding ly resist movement of theq-spin'f" dle in directionsradial -to its axis of revoi lution; the connections for all the resistance units being united in rigid. structure.

11. Ina revolving machine, arotary in? means for resisting lateral play of said spindle com rising a series of radiall posed individual resistance units an connections through which said units yieldingly disresist movement of the Spindle in directions l radial to its axis of revolution; the/"con-` united `in rigid structure; ance unit being movable relatively to its the radial direction of its action.

' 12. In combination with dle supported vertically play, an annularlyoke surrounding said spindle a revolving spin-r i but having ho'riand in which the spindle is fitted to rotate, having radial arms, vand an,"

annular series of `resistance unitsjradiallyf disposed about the normal position of the'` connected with the respective yoke spindle radial to the connections with the spindle through whic they coact in resisting movement' thereof ,f revolution, andbe` from'its normal axis of in directions perpen=' isy opposed to la resistance .unit on one side "of the' spindle plurality ,of resistance umts on tie opposite side thereof. p

14. In combination/ with mi oscillatory revolvingspindle, an uneven number vof double actingcuid y synnnetrical-ly'disp sedv in" annular series` around thespindlefand an annular yoke 1n which the spindle is confined, hpvingconnctionfwith alli!- saidunits.'

15.' Anf'annularmieldy of resistance vunits v which vsaid umts are '1 for oscillatory revolvingv bodies, comprising i vva' series .offluid cylindersandplungprs conlstrl tained thereiinfsymmetrically. uted in radial positions about a common center, an

" connections throughfwhich4 said* resistance units are ada ted to resist departure of a' i v 'volving bodies,

i f for restricting revolving bo y from its normal 'axis'kof revolution.

16. A resistance ield for'foscillatoryv recomprising an annular series of resistance units and` connections' throu h which saidunits areadaptedto resist e-i, parture Vof the revolving mal axis of revolution;

in 'said cylinder, and means lunger woiki-n of fluid displaced t eesca e fro'mthe cyllndcrb7 t e piston.'k

17-.A resistance eld for oscillatory revolvingbodies, comprising an annular series edium resistance units.

` inder.

body from its nory a resistance s unit ,y comprising a duid. containing cylinder, a`

' Means of resistance units and connectionethrou which-said units"l are adapted 'to resi-st e- "parture of the revolving body from its normal axis'of' revolution; a" resistance unit comprising la fluid containing cylinder, a plunger workin in said cylinder, and means or 4restricting oth the egress and ingress of the fluidas the piston.moyesy in the cylf 18. A resistance field vfor Joscillatory revolving bodies,comprising an annular series of resistance units vand connections throu h adapted vto resist eparture .of the. revolving body from its normal' axis 'of revolution; a resistance unit d comprisingv a fluid containing cylinder, a

in said cylinder, and means oth the egress and ingress ofthe Huid as the piston m'oves inthe cylinder, -andhaving means for .opening the 'cylinderfor quick filling by vextreme moveplunger working for restricting ment of the piston..

19. In a resistancev mechanismv for oscillat-ory revolving of resistance umts comprising `radially disposed cylinders 4having stons Working therein, andjrestricted 'fluid escape ports,

`1and an oil reservoir with which said cylinders communicate.

Signed at Chicago, of September, 1920.

' WILLIAM BARTI-IOLO 111inois`,u1is 28th day bodies, an annular series 

